From ecefe29d5ee625ae387c62dcce09832da5b06b7b Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Tue, 21 Jun 2022 18:38:31 -0600
Subject: [PATCH] fix optimized unused variable warnings

---
 libs/ardour/transport_fsm.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libs/ardour/transport_fsm.cc b/libs/ardour/transport_fsm.cc
index 93517a30af..bf0de51606 100644
--- a/libs/ardour/transport_fsm.cc
+++ b/libs/ardour/transport_fsm.cc
@@ -724,7 +724,9 @@ TransportFSM::defer (Event& ev)
 void
 TransportFSM::transition (MotionState ms)
 {
+#ifndef NDEBUG
 	const MotionState old = _motion_state;
+#endif
 	_motion_state = ms;
 	_transport_speed = compute_transport_speed ();
 	DEBUG_TRACE (DEBUG::TFSMState, string_compose ("Leave %1, enter %2\n", enum_2_string (old), current_state()));
@@ -733,7 +735,9 @@ TransportFSM::transition (MotionState ms)
 void
 TransportFSM::transition (ButlerState bs)
 {
+#ifndef NDEBUG
 	const ButlerState old = _butler_state;
+#endif
 	_butler_state = bs;
 	_transport_speed = compute_transport_speed ();
 	DEBUG_TRACE (DEBUG::TFSMState, string_compose ("Leave %1, enter %2\n", enum_2_string (old), current_state()));
@@ -742,7 +746,9 @@ TransportFSM::transition (ButlerState bs)
 void
 TransportFSM::transition (DirectionState ds)
 {
+#ifndef NDEBUG
 	const DirectionState old = _direction_state;
+#endif
 	_direction_state = ds;
 	_transport_speed = compute_transport_speed ();
 	DEBUG_TRACE (DEBUG::TFSMState, string_compose ("Leave %1, enter %2\n", enum_2_string (old), current_state()));